In 1954, the Supreme Court case Brown v. Board of Education overturned Plessy v. Ferguson by ruling segregation unconstitutional.
stated that African American and white schools needed to be equal.
upheld the Separate Car Act by ruling that segregation was legal.
upheld Plessy v. Ferguson by ruling segregation constitutional.

I dont know if this is right because the question didn't make sense so hope this helps! :

On May 18, 1896, the U.S. Supreme Court case Plessy v. Ferguson ruled that separate-but-equal facilities were constitutional. The Plessy v. Ferguson decision upheld the principle of racial segregation over the next half-century

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